JPH1082268A - Laterally retracting system in pipe-handling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retract effectively and safely a drill block, by using a laterally retracting system together with a boring system driven at the top. SOLUTION: The device unit 13 is guided along a guide rail by a wagon 15. A block 11 and the device 13 are held on a pipe at the center, in the boring position. A wire 17 is connected to a block 18 and a cylinder 19 is connected to the block 11 and attached to the wagon 15. The block 18 is formed of a roller 20 to change the direction of the nearest wire to the center line. Further, a skid system is arranged by guiding the roller 20 by a cylinder 22. The block 18 and the roller 20 have an effect shifting the direction of the wire from the center to a selected position by acting a pressure on the adjacent wire. When the block 11 is retracted and a space is given in a new portion, the block 11 is shifted from the center of the drill pipe to the side by the cylinder. In this way, a moment of a force acting on the guide rail is reduced and bending of the wire is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a lateral retraction system in a pipe handling system for use with a top driven drilling system in a derrick.

[0002]

2. Description of the Related Art US Pat. No. 3,682,259 (Cintract et al.)
The specification discloses a pulley block, which is specifically illustrated in FIGS. 1 and 5, which can be replaced with the aid of a jack so as to occupy the initial position of the axis of the drill hole. Like. The pulley block also
The activation of the jack can also shift to another position. The above replacement takes place along a slide bar mounted on a pulley block support wheel, which runs on vertical guide rails and uses cables to move the pulley block vertically.

[0003]

However, U.S. Pat. No. 3,682,259 is silent on how to shift the wire of the cable on which the pulley block is suspended at the same time as the vehicle shifts the pulley block. Also, the same prior art is silent on how such a shift of the wire at the top block level affects the redirection of the wire closest to the vertical centerline of the derrick.

[0004] It is an object of the present invention to provide a lateral retraction system in a pipe handling system for use with a top driven drilling system, where a coupling device is provided to provide space for a new drill pipe section. The drill block can be retracted in an effective and safe manner.

Another object of the present invention is to remove the drill block laterally from the central area beyond the drill pipe by the lateral retraction system described above, thereby allowing the drill block to be retracted to an upper position. However, the possibility is provided that new drill pipe sections can be connected.

It is yet another object of the present invention to provide a system which reduces the moment force compared to previously known methods of retracting a drill block between a guide rail and a drill pipe toward the outer limits of a derrick. , Less space needed.

[0007]

SUMMARY OF THE INVENTION The above object is achieved in the arrangement described in the preamble, which arrangement, according to the invention, is intended for carrying equipment units on a wagon guided by vertical guide rails. A second hydraulic cylinder skid mechanism was formed and attached to and from a top block with a standard derrick with a drill block that could be retracted by a wire running through a coupling connection to the top block. A lateral retraction system including a wire guide device located in the area of the top block. The wagon is supported on a first hydraulic cylinder skid mechanism, and the drill block can be retracted above a drill pipe from its center position and laterally on the second hydraulic cylinder skid mechanism. The wires can be shifted in parallel, and the wire guiding device activates the wires by pressure to move the wires in the same direction as the drill block.
Suitably, the first hydraulic cylinder skid mechanism may be located between the drill block and a wagon carrying the equipment unit.

[0008] In a preferred embodiment, the wire guide device may include a pressure roller connected to the second hydraulic cylinder skid mechanism by a coupling arm connected to a hydraulic cylinder and a top block.

[0009] Further features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings.

FIGS. 1-5 illustrate a lateral retraction system designed for use with a top drive drilling system. The top drive drilling system works with the wire block system at the top of the drilling tower and serves the purpose of lifting and lowering various devices. One example of such a device is a drilling machine for rotating a drill pipe, which device, through a joint,
It is connected to a block in the form of a wagon guided by vertical guide rails. When drilling for water, gas or crude oil, it is necessary to raise and lower the drill block to which the device is connected, while maintaining the drill pipe in its drilling position.

This problem is solved today by retracting the block with the device between the guide rail and the drill pipe. This consumes space and results in undesirable wire bending. During drilling, the moment of force will be large and the stress factor will be large. As a result, the required size increases.

The present invention can solve some of these problems and allows for the design of derricks that require less space. This will not only prevent the wire from bending when retracted from a symmetric location above the drill pipe, but will also reduce the moment of force on the guide rail. This is mainly achieved by concentrating the drill block laterally and designing and arranging it as characterized in the appended claims.

[0013] By the side concentrated design of the drill block,
The space required for the retraction operation will be smaller.
This is very important in the critical area of the space and will result in a significant dimensional reduction of the structure compared to previous methods. In the present invention, the wire will not have a negative stress factor.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS An embodiment of the lateral retraction system will now be described with reference to the accompanying drawings and description. 1 to 5, reference numeral 11 denotes a drill block in a derrick. The drill block 11 is connected via a coupling link 12 to a device unit 13, for example a drilling machine for drilling drill pipes.

The device 13 is guided by a wagon 15 on vertical guide rails 16. In the drilling position, as in FIG. 1, the drill block 11 and the device 13 connected thereto are held on a drill pipe 14 in a central position. To the top block 18 at the top of the derrick, and again this top block
From 18, a wire 17 is connected. Drill block 11
Is connected to a hydraulic cylinder 19 which is operated by a hydraulic cylinder, which is also mounted on the wagon 15.

To redirect the wire closest to the vertical centerline of the derrick, the top block 18 comprises a rotatable roller 20, which is connected to the top block 18 by a joint arm 21. The skid system includes a hydraulic cylinder 22 connected to the top block 18.
Is arranged by guiding the roller 20. block
The 18 and guide rollers 20 can exert pressure on adjacent wires and have the effect of off-centering the direction of the wires to a selected location. This is particularly so when the drill block 11 is in the retracted position. See FIG. 2 and FIG. 3 and the position of the dotted line in FIG.

When the drill block 11 to which the device 13 is connected is retracted to provide space for a new pipe section 14 ', the hydraulic cylinder 19 is activated to move the drill block 11 from the center portion on the drill pipe to the center (side). (Toward). This opens up the possibility of connecting a new drill pipe section 14 'even before the drill block 11 has been retracted to the upper position.

The wire 17 also moves in the same direction as the drill block 11 and is also brought to the side from the central part of the derrick, so that the hydraulic cylinder 22 at the top block 18 Skid roller 20
Move. When the drill block connecting the device, including the wire, is retracted to the retracted position, the members shown in FIGS. 2 and 3 will assume the position indicated by the dashed position in FIG.

FIG. 5 shows a fingerboard 25 in which the platform deck 23, derrick 24 and drill pipe section 14 'are stored in a vertical position. The use of different pipe handling machines and the placement of the fingerboard allows the different drill pipes to be moved between the fingerboard 25 and the hole at the center of the drill pipe.

According to the invention, a retracted drill block
11 is laterally off-center, which means that the central axis moves in parallel. This movement causes the drill block 11 to move into the fingerboard slot, as shown in FIG.
It is caused by moving parallel to the guide rail 16 as well as 25 '.

The present system reduces the force of the moment and the space required in the outer limits of the derrick to a lesser extent than previously known methods of retracting the drill block between the guide rail 16 and the drill pipe 14. I do. By guiding the wires at the top block, no negative factors will occur, as with conventional technology.

[0022]

As is apparent from the above description, according to the present invention, the space required for piercing the derrick is reduced, and the bending of the wire can be prevented by reducing the moment of the force applied to the guide rail. Significance is extremely large.

[Brief description of the drawings]

FIG. 1 is a front view showing the principle of operation of a lateral retraction system according to the present invention, showing what is centered on a drill pipe.

FIG. 2 is a front view in which a drill block is also retracted from a central position and a drill pipe section to be added is connected thereto.

FIG. 3 is a front view showing the same location arrangement as in FIG. 2, but with the drill block and the associated device in the upper position.

FIG. 4 is a side view of that of FIG.

FIG. 5 is a plan view showing the principle of operation of the system of the present invention.

[Explanation of symbols]

 Reference Signs List 11 drill block 12 joint link 13 equipment unit 14 drill pipe 15 wagon 16 guide rail 17 wire 18 top block 19 hydraulic cylinder 20 pressure roller 21 joint arm 22 hydraulic cylinder 23 platform deck 24 derrick 25 fingerboard 25 'fingerboard slot 26 drill pipe

Claims (6)

[Claims] Claims 1. A derrick-related pipe handling system, wherein a side-to-side retraction system (18-22) of a drill block for connecting an additional drill pipe section is used with a top driven drilling system. Lateral retraction system in a pipe handling system characterized by being designed as follows. 2. The lateral retraction system according to claim 1, wherein the lateral retraction system can be integrated in a standard derrick. 3. In particular, running to and from a top block (18) for moving an equipment unit (13) on a wagon (15) guided by a vertical guide rail (16). A derrick (24) with a drill block (11) that can be retracted using a wire (17) and through a coupling connection (22), which is connected to a drill pipe (14). The system according to claim 2, characterized in that the drill block (11) is adapted for parallel lateral displacement in a configuration such that it can be retracted from a central position above. 4. The wire (17) is connected to a drill block (1).
4. The system according to claim 3, wherein a wire guide device (20) is provided in the area of the top block (18) for activation by pressure to move in the same direction as 1). 5. A skid mechanism (19), for example a hydraulic cylinder (19), arranged between the drill block (11) and the wagon (15) for the equipment unit (13). System. 6. A top wire guide device comprising a pressure roller (20) connected to a skid mechanism in the form of a hydraulic cylinder (22), and wherein said pressure roller (20) is articulated. (21) by the top block (1
6. The system according to claim 5, wherein the system is connected to a joint with the system (8).